package STRING;

public class MatchesDemo {
    public static void main(String[] args) {
       // [a-zA-Z0-9_]+@[a-zA-Z0-9]+(\.[a-zA-Z]+)+
        String email="wangkej@tedu.zk";
        String regex="[a-zA-Z0-9_]+@[a-zA-Z0-9]+(\\.[a-zA-Z]+)+";
        boolean match =email.matches(regex);
        if(match){
            System.out.println("没毛病");
        }else{
            System.out.println("有问题奥");
        }
    }
}
